just signed up. I have just bought a 2102 D22 ST-r CR 150k on the clock and it doesn't look to have done a lot of work. No doubt I will have questions. Going to check the timing chain today just to see how things look.
Worth it! I'm also a new owner of a 2012, (d40) though. I surely heard no rattling in mine, its done 200,000 so I thought jumping into a mechanic just in case would be a good idea and yep, there goes an extra $2400 out of my wallet but thats a lot better than having to buy a new engine I guess.